(7) शिक्षकों और (8) छात्रों में से (6) सदस्यीय दल बनाना है, जिसमें शिक्षकों की संख्या छात्रों से अधिक हो। कितने दल बनेंगे?

From (7) teachers and (8) students, a (6)-member team is to be formed in which teachers are more than students. How many teams are possible?

Explanation opens after your attempt
Correct Answer

A. (917)

Step 1

Concept

Cases are (4T2S), (5T1S), and (6T0S). Sum is \(^{7}C_{4}{}^{8}C_{2}+^{7}C_{5}{}^{8}C_{1}+^{7}C_{6}=1155\).

Step 2

Why this answer is correct

The correct answer is A. (917). Cases are (4T2S), (5T1S), and (6T0S). Sum is \(^{7}C_{4}{}^{8}C_{2}+^{7}C_{5}{}^{8}C_{1}+^{7}C_{6}=1155\).

Step 3

Exam Tip

शिक्षक अधिक होने के मामले (4T2S), (5T1S), (6T0S) हैं। योग \(^{7}C_{4}{}^{8}C_{2}+^{7}C_{5}{}^{8}C_{1}+^{7}C_{6}=1155\) होता है।

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Mathematics Answer, Explanation and Revision Hints

(7) शिक्षकों और (8) छात्रों में से (6) सदस्यीय दल बनाना है, जिसमें शिक्षकों की संख्या छात्रों से अधिक हो। कितने दल बनेंगे? / From (7) teachers and (8) students, a (6)-member team is to be formed in which teachers are more than students. How many teams are possible?

Correct Answer: A. (917). Explanation: शिक्षक अधिक होने के मामले (4T2S), (5T1S), (6T0S) हैं। योग \(^{7}C_{4}{}^{8}C_{2}+^{7}C_{5}{}^{8}C_{1}+^{7}C_{6}=1155\) होता है। / Cases are (4T2S), (5T1S), and (6T0S). Sum is \(^{7}C_{4}{}^{8}C_{2}+^{7}C_{5}{}^{8}C_{1}+^{7}C_{6}=1155\).

Which concept should I revise for this Mathematics MCQ?

Cases are (4T2S), (5T1S), and (6T0S). Sum is \(^{7}C_{4}{}^{8}C_{2}+^{7}C_{5}{}^{8}C_{1}+^{7}C_{6}=1155\).

What exam hint can help solve this Mathematics question?

शिक्षक अधिक होने के मामले (4T2S), (5T1S), (6T0S) हैं। योग \(^{7}C_{4}{}^{8}C_{2}+^{7}C_{5}{}^{8}C_{1}+^{7}C_{6}=1155\) होता है।